Mistralys / application-utils

src/FileHelper.php

Indentation +420 added lines, -420 removed lines

@@ -52,32 +52,32 @@ 
     const ERROR_PATH_IS_NOT_A_FOLDER = 340034;
     const ERROR_CANNOT_WRITE_TO_FOLDER = 340035;
     
-   /**
-    * Opens a serialized file and returns the unserialized data.
-    * 
-    * @param string $file
-    * @throws FileHelper_Exception
-    * @return array
-    * @deprecated Use parseSerializedFile() instead.
-    * @see FileHelper::parseSerializedFile()
-    */
+    /**
+     * Opens a serialized file and returns the unserialized data.
+     * 
+     * @param string $file
+     * @throws FileHelper_Exception
+     * @return array
+     * @deprecated Use parseSerializedFile() instead.
+     * @see FileHelper::parseSerializedFile()
+     */
     public static function openUnserialized(string $file) : array
     {
         return self::parseSerializedFile($file);
     }
 
-   /**
-    * Opens a serialized file and returns the unserialized data.
-    *
-    * @param string $file
-    * @throws FileHelper_Exception
-    * @return array
-    * @see FileHelper::parseSerializedFile()
-    * 
-    * @see FileHelper::ERROR_FILE_DOES_NOT_EXIST
-    * @see FileHelper::ERROR_SERIALIZED_FILE_CANNOT_BE_READ
-    * @see FileHelper::ERROR_SERIALIZED_FILE_UNSERIALZE_FAILED
-    */
+    /**
+     * Opens a serialized file and returns the unserialized data.
+     *
+     * @param string $file
+     * @throws FileHelper_Exception
+     * @return array
+     * @see FileHelper::parseSerializedFile()
+     * 
+     * @see FileHelper::ERROR_FILE_DOES_NOT_EXIST
+     * @see FileHelper::ERROR_SERIALIZED_FILE_CANNOT_BE_READ
+     * @see FileHelper::ERROR_SERIALIZED_FILE_UNSERIALZE_FAILED
+     */
     public static function parseSerializedFile(string $file)
     {
         self::requireFileExists($file);
@@ -146,13 +146,13 @@ 
         return rmdir($rootFolder);
     }
     
-   /**
-    * Create a folder, if it does not exist yet.
-    *  
-    * @param string $path
-    * @throws FileHelper_Exception
-    * @see FileHelper::ERROR_CANNOT_CREATE_FOLDER
-    */
+    /**
+     * Create a folder, if it does not exist yet.
+     *  
+     * @param string $path
+     * @throws FileHelper_Exception
+     * @see FileHelper::ERROR_CANNOT_CREATE_FOLDER
+     */
     public static function createFolder($path)
     {
         if(is_dir($path) || mkdir($path, 0777, true)) {
@@ -199,22 +199,22 @@ 
         }
     }
     
-   /**
-    * Copies a file to the target location. Includes checks
-    * for most error sources, like the source file not being
-    * readable. Automatically creates the target folder if it
-    * does not exist yet.
-    * 
-    * @param string $sourcePath
-    * @param string $targetPath
-    * @throws FileHelper_Exception
-    * 
-    * @see FileHelper::ERROR_CANNOT_CREATE_FOLDER
-    * @see FileHelper::ERROR_SOURCE_FILE_NOT_FOUND
-    * @see FileHelper::ERROR_SOURCE_FILE_NOT_READABLE
-    * @see FileHelper::ERROR_TARGET_COPY_FOLDER_NOT_WRITABLE
-    * @see FileHelper::ERROR_CANNOT_COPY_FILE
-    */
+    /**
+     * Copies a file to the target location. Includes checks
+     * for most error sources, like the source file not being
+     * readable. Automatically creates the target folder if it
+     * does not exist yet.
+     * 
+     * @param string $sourcePath
+     * @param string $targetPath
+     * @throws FileHelper_Exception
+     * 
+     * @see FileHelper::ERROR_CANNOT_CREATE_FOLDER
+     * @see FileHelper::ERROR_SOURCE_FILE_NOT_FOUND
+     * @see FileHelper::ERROR_SOURCE_FILE_NOT_READABLE
+     * @see FileHelper::ERROR_TARGET_COPY_FOLDER_NOT_WRITABLE
+     * @see FileHelper::ERROR_CANNOT_COPY_FILE
+     */
     public static function copyFile(string $sourcePath, string $targetPath) : void
     {
         self::requireFileExists($sourcePath, self::ERROR_SOURCE_FILE_NOT_FOUND);
@@ -254,15 +254,15 @@ 
         );
     }
     
-   /**
-    * Deletes the target file. Ignored if it cannot be found,
-    * and throws an exception if it fails.
-    * 
-    * @param string $filePath
-    * @throws FileHelper_Exception
-    * 
-    * @see FileHelper::ERROR_CANNOT_DELETE_FILE
-    */
+    /**
+     * Deletes the target file. Ignored if it cannot be found,
+     * and throws an exception if it fails.
+     * 
+     * @param string $filePath
+     * @throws FileHelper_Exception
+     * 
+     * @see FileHelper::ERROR_CANNOT_DELETE_FILE
+     */
     public static function deleteFile(string $filePath) : void
     {
         if(!file_exists($filePath)) {
@@ -284,15 +284,15 @@ 
     }
 
     /**
-    * Creates a new CSV parser instance and returns it.
-    * 
-    * @param string $delimiter
-    * @param string $enclosure
-    * @param string $escape
-    * @param bool $heading
-    * @return Csv
+     * Creates a new CSV parser instance and returns it.
+     * 
+     * @param string $delimiter
+     * @param string $enclosure
+     * @param string $escape
+     * @param bool $heading
+     * @return Csv
      * @see CSVHelper::createParser()
-    */
+     */
     public static function createCSVParser(string $delimiter = ';', string $enclosure = '"', string $escape = '\\', bool $heading=false) : Csv
     {
         if($delimiter==='') { $delimiter = ';'; }
@@ -305,21 +305,21 @@ 
         return $parser;
     }
 
-   /**
-    * Parses all lines in the specified string and returns an
-    * indexed array with all csv values in each line.
-    *
-    * @param string $csv
-    * @param string $delimiter
-    * @param string $enclosure
-    * @param string $escape
-    * @param bool $heading
-    * @return array
-    * @throws FileHelper_Exception
-    * 
-    * @see parseCSVFile()
-    * @see FileHelper::ERROR_PARSING_CSV
-    */
+    /**
+     * Parses all lines in the specified string and returns an
+     * indexed array with all csv values in each line.
+     *
+     * @param string $csv
+     * @param string $delimiter
+     * @param string $enclosure
+     * @param string $escape
+     * @param bool $heading
+     * @return array
+     * @throws FileHelper_Exception
+     * 
+     * @see parseCSVFile()
+     * @see FileHelper::ERROR_PARSING_CSV
+     */
     public static function parseCSVString(string $csv, string $delimiter = ';', string $enclosure = '"', string $escape = '\\', bool $heading=false) : array
     {
         $parser = self::createCSVParser($delimiter, $enclosure, '\\', $heading);
@@ -490,31 +490,31 @@ 
         );
     }
     
-   /**
-    * Verifies whether the target file is a PHP file. The path
-    * to the file can be a path to a file as a string, or a 
-    * DirectoryIterator object instance.
-    * 
-    * @param string|\DirectoryIterator $pathOrDirIterator
-    * @return boolean
-    */
+    /**
+     * Verifies whether the target file is a PHP file. The path
+     * to the file can be a path to a file as a string, or a 
+     * DirectoryIterator object instance.
+     * 
+     * @param string|\DirectoryIterator $pathOrDirIterator
+     * @return boolean
+     */
     public static function isPHPFile($pathOrDirIterator)
     {
-    	if(self::getExtension($pathOrDirIterator) == 'php') {
-    		return true;
-    	}
+        if(self::getExtension($pathOrDirIterator) == 'php') {
+            return true;
+        }
     	
-    	return false;
+        return false;
     }
     
-   /**
-    * Retrieves the extension of the specified file. Can be a path
-    * to a file as a string, or a DirectoryIterator object instance.
-    * 
-    * @param string|\DirectoryIterator $pathOrDirIterator
-    * @param bool $lowercase
-    * @return string
-    */
+    /**
+     * Retrieves the extension of the specified file. Can be a path
+     * to a file as a string, or a DirectoryIterator object instance.
+     * 
+     * @param string|\DirectoryIterator $pathOrDirIterator
+     * @param bool $lowercase
+     * @return string
+     */
     public static function getExtension($pathOrDirIterator, bool $lowercase = true) : string
     {
         if($pathOrDirIterator instanceof \DirectoryIterator) {
@@ -525,51 +525,51 @@ 
          
         $ext = pathinfo($filename, PATHINFO_EXTENSION);
         if($lowercase) {
-        	$ext = mb_strtolower($ext);
+            $ext = mb_strtolower($ext);
         }
         
         return $ext;
     }
     
-   /**
-    * Retrieves the file name from a path, with or without extension.
-    * The path to the file can be a string, or a DirectoryIterator object
-    * instance.
-    * 
-    * In case of folders, behaves like the pathinfo function: returns
-    * the name of the folder.
-    * 
-    * @param string|\DirectoryIterator $pathOrDirIterator
-    * @param bool $extension
-    * @return string
-    */
+    /**
+     * Retrieves the file name from a path, with or without extension.
+     * The path to the file can be a string, or a DirectoryIterator object
+     * instance.
+     * 
+     * In case of folders, behaves like the pathinfo function: returns
+     * the name of the folder.
+     * 
+     * @param string|\DirectoryIterator $pathOrDirIterator
+     * @param bool $extension
+     * @return string
+     */
     public static function getFilename($pathOrDirIterator, $extension = true)
     {
         $path = $pathOrDirIterator;
-    	if($pathOrDirIterator instanceof \DirectoryIterator) {
-    		$path = $pathOrDirIterator->getFilename();
-    	}
+        if($pathOrDirIterator instanceof \DirectoryIterator) {
+            $path = $pathOrDirIterator->getFilename();
+        }
     	
-    	$path = self::normalizePath($path);
+        $path = self::normalizePath($path);
     	
-    	if(!$extension) {
-    	    return pathinfo($path, PATHINFO_FILENAME);
-    	}
+        if(!$extension) {
+            return pathinfo($path, PATHINFO_FILENAME);
+        }
     	
-    	return pathinfo($path, PATHINFO_BASENAME); 
+        return pathinfo($path, PATHINFO_BASENAME); 
     }
    
-   /**
-    * Tries to read the contents of the target file and
-    * treat it as JSON to return the decoded JSON data.
-    * 
-    * @param string $file
-    * @throws FileHelper_Exception
-    * @return array
-    * 
-    * @see FileHelper::ERROR_CANNOT_FIND_JSON_FILE
-    * @see FileHelper::ERROR_CANNOT_DECODE_JSON_FILE
-    */ 
+    /**
+     * Tries to read the contents of the target file and
+     * treat it as JSON to return the decoded JSON data.
+     * 
+     * @param string $file
+     * @throws FileHelper_Exception
+     * @return array
+     * 
+     * @see FileHelper::ERROR_CANNOT_FIND_JSON_FILE
+     * @see FileHelper::ERROR_CANNOT_DECODE_JSON_FILE
+     */ 
     public static function parseJSONFile(string $file, $targetEncoding=null, $sourceEncoding=null)
     {
         self::requireFileExists($file, self::ERROR_CANNOT_FIND_JSON_FILE);
@@ -605,16 +605,16 @@ 
         return $json;
     }
     
-   /**
-    * Corrects common formatting mistakes when users enter
-    * file names, like too many spaces, dots and the like.
-    * 
-    * NOTE: if the file name contains a path, the path is
-    * stripped, leaving only the file name.
-    * 
-    * @param string $name
-    * @return string
-    */
+    /**
+     * Corrects common formatting mistakes when users enter
+     * file names, like too many spaces, dots and the like.
+     * 
+     * NOTE: if the file name contains a path, the path is
+     * stripped, leaving only the file name.
+     * 
+     * @param string $name
+     * @return string
+     */
     public static function fixFileName(string $name) : string
     {
         $name = trim($name);
@@ -644,68 +644,68 @@ 
         return $name;
     }
     
-   /**
-    * Creates an instance of the file finder, which is an easier
-    * alternative to the other manual findFile methods, since all
-    * options can be set by chaining.
-    * 
-    * @param string $path
-    * @return FileHelper_FileFinder
-    */
+    /**
+     * Creates an instance of the file finder, which is an easier
+     * alternative to the other manual findFile methods, since all
+     * options can be set by chaining.
+     * 
+     * @param string $path
+     * @return FileHelper_FileFinder
+     */
     public static function createFileFinder(string $path) : FileHelper_FileFinder
     {
         return new FileHelper_FileFinder($path);
     }
     
-   /**
-    * Searches for all HTML files in the target folder.
-    * 
-    * NOTE: This method only exists for backwards compatibility.
-    * Use the `createFileFinder()` method instead, which offers
-    * an object oriented interface that is much easier to use.
-    * 
-    * @param string $targetFolder
-    * @param array $options
-    * @return array An indexed array with files.
-    * @see FileHelper::createFileFinder()
-    */
+    /**
+     * Searches for all HTML files in the target folder.
+     * 
+     * NOTE: This method only exists for backwards compatibility.
+     * Use the `createFileFinder()` method instead, which offers
+     * an object oriented interface that is much easier to use.
+     * 
+     * @param string $targetFolder
+     * @param array $options
+     * @return array An indexed array with files.
+     * @see FileHelper::createFileFinder()
+     */
     public static function findHTMLFiles(string $targetFolder, array $options=array()) : array
     {
         return self::findFiles($targetFolder, array('html'), $options);
     }
 
-   /**
-    * Searches for all PHP files in the target folder.
-    * 
-    * NOTE: This method only exists for backwards compatibility.
-    * Use the `createFileFinder()` method instead, which offers
-    * an object oriented interface that is much easier to use.
-    * 
-    * @param string $targetFolder
-    * @param array $options
-    * @return array An indexed array of PHP files.
-    * @see FileHelper::createFileFinder()
-    */
+    /**
+     * Searches for all PHP files in the target folder.
+     * 
+     * NOTE: This method only exists for backwards compatibility.
+     * Use the `createFileFinder()` method instead, which offers
+     * an object oriented interface that is much easier to use.
+     * 
+     * @param string $targetFolder
+     * @param array $options
+     * @return array An indexed array of PHP files.
+     * @see FileHelper::createFileFinder()
+     */
     public static function findPHPFiles(string $targetFolder, array $options=array()) : array
     {
         return self::findFiles($targetFolder, array('php'), $options);
     }
     
-   /**
-    * Finds files according to the specified options.
-    * 
-    * NOTE: This method only exists for backwards compatibility.
-    * Use the `createFileFinder()` method instead, which offers
-    * an object oriented interface that is much easier to use.
-    *  
-    * @param string $targetFolder
-    * @param array $extensions
-    * @param array $options
-    * @param array $files
-    * @throws FileHelper_Exception
-    * @return array
-    * @see FileHelper::createFileFinder()
-    */
+    /**
+     * Finds files according to the specified options.
+     * 
+     * NOTE: This method only exists for backwards compatibility.
+     * Use the `createFileFinder()` method instead, which offers
+     * an object oriented interface that is much easier to use.
+     *  
+     * @param string $targetFolder
+     * @param array $extensions
+     * @param array $options
+     * @param array $files
+     * @throws FileHelper_Exception
+     * @return array
+     * @see FileHelper::createFileFinder()
+     */
     public static function findFiles(string $targetFolder, array $extensions=array(), array $options=array(), array $files=array()) : array
     {
         $finder = self::createFileFinder($targetFolder);
@@ -731,14 +731,14 @@ 
         return $finder->getAll();
     }
 
-   /**
-    * Removes the extension from the specified path or file name,
-    * if any, and returns the name without the extension.
-    * 
-    * @param string $filename
-    * @param bool $keepPath Whether to keep the path component, if any. Default PHP pathinfo behavior is not to.
-    * @return string
-    */
+    /**
+     * Removes the extension from the specified path or file name,
+     * if any, and returns the name without the extension.
+     * 
+     * @param string $filename
+     * @param bool $keepPath Whether to keep the path component, if any. Default PHP pathinfo behavior is not to.
+     * @return string
+     */
     public static function removeExtension(string $filename, bool $keepPath=false) : string
     {
         // normalize paths to allow windows style slashes even on nix servers
@@ -758,22 +758,22 @@ 
         return implode('/', $parts);
     }
     
-   /**
-    * Detects the UTF BOM in the target file, if any. Returns
-    * the encoding matching the BOM, which can be any of the
-    * following:
-    * 
-    * <ul>
-    * <li>UTF32-BE</li>
-    * <li>UTF32-LE</li>
-    * <li>UTF16-BE</li>
-    * <li>UTF16-LE</li>
-    * <li>UTF8</li>
-    * </ul>
-    * 
-    * @param string $filename
-    * @return string|NULL
-    */
+    /**
+     * Detects the UTF BOM in the target file, if any. Returns
+     * the encoding matching the BOM, which can be any of the
+     * following:
+     * 
+     * <ul>
+     * <li>UTF32-BE</li>
+     * <li>UTF32-LE</li>
+     * <li>UTF16-BE</li>
+     * <li>UTF16-LE</li>
+     * <li>UTF8</li>
+     * </ul>
+     * 
+     * @param string $filename
+     * @return string|NULL
+     */
     public static function detectUTFBom(string $filename) : ?string
     {
         $fp = fopen($filename, 'r');
@@ -805,13 +805,13 @@ 
     
     protected static $utfBoms;
     
-   /**
-    * Retrieves a list of all UTF byte order mark character
-    * sequences, as an assocative array with UTF encoding => bom sequence
-    * pairs.
-    * 
-    * @return array
-    */
+    /**
+     * Retrieves a list of all UTF byte order mark character
+     * sequences, as an assocative array with UTF encoding => bom sequence
+     * pairs.
+     * 
+     * @return array
+     */
     public static function getUTFBOMs()
     {
         if(!isset(self::$utfBoms)) {
@@ -827,15 +827,15 @@ 
         return self::$utfBoms;
     }
     
-   /**
-    * Checks whether the specified encoding is a valid
-    * unicode encoding, for example "UTF16-LE" or "UTF8".
-    * Also accounts for alternate way to write the, like
-    * "UTF-8", and omitting little/big endian suffixes.
-    * 
-    * @param string $encoding
-    * @return boolean
-    */
+    /**
+     * Checks whether the specified encoding is a valid
+     * unicode encoding, for example "UTF16-LE" or "UTF8".
+     * Also accounts for alternate way to write the, like
+     * "UTF-8", and omitting little/big endian suffixes.
+     * 
+     * @param string $encoding
+     * @return boolean
+     */
     public static function isValidUnicodeEncoding(string $encoding) : bool
     {
         $encodings = self::getKnownUnicodeEncodings();
@@ -854,40 +854,40 @@ 
         return in_array($encoding, $keep);
     }
     
-   /**
-    * Retrieves a list of all known unicode file encodings.
-    * @return array
-    */
+    /**
+     * Retrieves a list of all known unicode file encodings.
+     * @return array
+     */
     public static function getKnownUnicodeEncodings()
     {
         return array_keys(self::getUTFBOMs());
     }
     
-   /**
-    * Normalizes the slash style in a file or folder path,
-    * by replacing any antislashes with forward slashes.
-    * 
-    * @param string $path
-    * @return string
-    */
+    /**
+     * Normalizes the slash style in a file or folder path,
+     * by replacing any antislashes with forward slashes.
+     * 
+     * @param string $path
+     * @return string
+     */
     public static function normalizePath(string $path) : string
     {
         return str_replace(array('\\', '//'), array('/', '/'), $path);
     }
     
-   /**
-    * Saves the specified data to a file, JSON encoded.
-    * 
-    * @param mixed $data
-    * @param string $file
-    * @param bool $pretty
-    * @throws FileHelper_Exception
-    * 
-    * @see FileHelper::ERROR_JSON_ENCODE_ERROR
-    * @see FileHelper::ERROR_SAVE_FOLDER_NOT_WRITABLE
-    * @see FileHelper::ERROR_SAVE_FILE_NOT_WRITABLE
-    * @see FileHelper::ERROR_SAVE_FILE_WRITE_FAILED
-    */
+    /**
+     * Saves the specified data to a file, JSON encoded.
+     * 
+     * @param mixed $data
+     * @param string $file
+     * @param bool $pretty
+     * @throws FileHelper_Exception
+     * 
+     * @see FileHelper::ERROR_JSON_ENCODE_ERROR
+     * @see FileHelper::ERROR_SAVE_FOLDER_NOT_WRITABLE
+     * @see FileHelper::ERROR_SAVE_FILE_NOT_WRITABLE
+     * @see FileHelper::ERROR_SAVE_FILE_WRITE_FAILED
+     */
     public static function saveAsJSON($data, string $file, bool $pretty=false)
     {
         $options = null;
@@ -911,18 +911,18 @@ 
         self::saveFile($file, $json);
     }
    
-   /**
-    * Saves the specified content to the target file, creating
-    * the file and the folder as necessary.
-    * 
-    * @param string $filePath
-    * @param string $content
-    * @throws FileHelper_Exception
-    * 
-    * @see FileHelper::ERROR_SAVE_FOLDER_NOT_WRITABLE
-    * @see FileHelper::ERROR_SAVE_FILE_NOT_WRITABLE
-    * @see FileHelper::ERROR_SAVE_FILE_WRITE_FAILED
-    */
+    /**
+     * Saves the specified content to the target file, creating
+     * the file and the folder as necessary.
+     * 
+     * @param string $filePath
+     * @param string $content
+     * @throws FileHelper_Exception
+     * 
+     * @see FileHelper::ERROR_SAVE_FOLDER_NOT_WRITABLE
+     * @see FileHelper::ERROR_SAVE_FILE_NOT_WRITABLE
+     * @see FileHelper::ERROR_SAVE_FILE_WRITE_FAILED
+     */
     public static function saveFile(string $filePath, string $content='') : void
     {
         $filePath = self::normalizePath($filePath);
@@ -989,12 +989,12 @@ 
         );
     }
     
-   /**
-    * Checks whether it is possible to run PHP command 
-    * line commands.
-    * 
-    * @return boolean
-    */
+    /**
+     * Checks whether it is possible to run PHP command 
+     * line commands.
+     * 
+     * @return boolean
+     */
     public static function canMakePHPCalls() : bool
     {
         return self::cliCommandExists('php');
@@ -1071,16 +1071,16 @@ 
         return $result;
     }
     
-   /**
-    * Validates a PHP file's syntax.
-    * 
-    * NOTE: This will fail silently if the PHP command line
-    * is not available. Use {@link FileHelper::canMakePHPCalls()}
-    * to check this beforehand as needed.
-    * 
-    * @param string $path
-    * @return boolean|array A boolean true if the file is valid, an array with validation messages otherwise.
-    */
+    /**
+     * Validates a PHP file's syntax.
+     * 
+     * NOTE: This will fail silently if the PHP command line
+     * is not available. Use {@link FileHelper::canMakePHPCalls()}
+     * to check this beforehand as needed.
+     * 
+     * @param string $path
+     * @return boolean|array A boolean true if the file is valid, an array with validation messages otherwise.
+     */
     public static function checkPHPFileSyntax($path)
     {
         if(!self::canMakePHPCalls()) {
@@ -1104,14 +1104,14 @@ 
         return $output;
     }
     
-   /**
-    * Retrieves the last modified date for the specified file or folder.
-    * 
-    * Note: If the target does not exist, returns null. 
-    * 
-    * @param string $path
-    * @return \DateTime|NULL
-    */
+    /**
+     * Retrieves the last modified date for the specified file or folder.
+     * 
+     * Note: If the target does not exist, returns null. 
+     * 
+     * @param string $path
+     * @return \DateTime|NULL
+     */
     public static function getModifiedDate($path)
     {
         $time = filemtime($path);
@@ -1124,24 +1124,24 @@ 
         return null; 
     }
     
-   /**
-    * Retrieves the names of all subfolders in the specified path.
-    * 
-    * Available options:
-    * 
-    * - recursive: true/false
-    *   Whether to search for subfolders recursively. 
-    *   
-    * - absolute-paths: true/false
-    *   Whether to return a list of absolute paths.
-    * 
-    * @param string $targetFolder
-    * @param array $options
-    * @throws FileHelper_Exception
-    * @return string[]
-    * 
-    * @todo Move this to a separate class.
-    */
+    /**
+     * Retrieves the names of all subfolders in the specified path.
+     * 
+     * Available options:
+     * 
+     * - recursive: true/false
+     *   Whether to search for subfolders recursively. 
+     *   
+     * - absolute-paths: true/false
+     *   Whether to return a list of absolute paths.
+     * 
+     * @param string $targetFolder
+     * @param array $options
+     * @throws FileHelper_Exception
+     * @return string[]
+     * 
+     * @todo Move this to a separate class.
+     */
     public static function getSubfolders($targetFolder, $options = array())
     {
         if(!is_dir($targetFolder)) 
@@ -1202,16 +1202,16 @@ 
         return $result;
     }
 
-   /**
-    * Retrieves the maximum allowed upload file size, in bytes.
-    * Takes into account the PHP ini settings <code>post_max_size</code>
-    * and <code>upload_max_filesize</code>. Since these cannot
-    * be modified at runtime, they are the hard limits for uploads.
-    * 
-    * NOTE: Based on binary values, where 1KB = 1024 Bytes.
-    * 
-    * @return int Will return <code>-1</code> if no limit.
-    */
+    /**
+     * Retrieves the maximum allowed upload file size, in bytes.
+     * Takes into account the PHP ini settings <code>post_max_size</code>
+     * and <code>upload_max_filesize</code>. Since these cannot
+     * be modified at runtime, they are the hard limits for uploads.
+     * 
+     * NOTE: Based on binary values, where 1KB = 1024 Bytes.
+     * 
+     * @return int Will return <code>-1</code> if no limit.
+     */
     public static function getMaxUploadFilesize() : int
     {
         static $max_size = -1;
@@ -1249,16 +1249,16 @@ 
         return round($size);
     }
    
-   /**
-    * Makes a path relative using a folder depth: will reduce the
-    * length of the path so that only the amount of folders defined
-    * in the <code>$depth</code> attribute are shown below the actual
-    * folder or file in the path.
-    *  
-    * @param string  $path The absolute or relative path
-    * @param int $depth The folder depth to reduce the path to
-    * @return string
-    */
+    /**
+     * Makes a path relative using a folder depth: will reduce the
+     * length of the path so that only the amount of folders defined
+     * in the <code>$depth</code> attribute are shown below the actual
+     * folder or file in the path.
+     *  
+     * @param string  $path The absolute or relative path
+     * @param int $depth The folder depth to reduce the path to
+     * @return string
+     */
     public static function relativizePathByDepth(string $path, int $depth=2) : string
     {
         $path = self::normalizePath($path);
@@ -1296,23 +1296,23 @@ 
         return trim(implode('/', $tokens), '/');
     }
     
-   /**
-    * Makes the specified path relative to another path,
-    * by removing one from the other if found. Also 
-    * normalizes the path to use forward slashes. 
-    * 
-    * Example:
-    * 
-    * <pre>
-    * relativizePath('c:\some\folder\to\file.txt', 'c:\some\folder');
-    * </pre>
-    * 
-    * Result: <code>to/file.txt</code>
-    * 
-    * @param string $path
-    * @param string $relativeTo
-    * @return string
-    */
+    /**
+     * Makes the specified path relative to another path,
+     * by removing one from the other if found. Also 
+     * normalizes the path to use forward slashes. 
+     * 
+     * Example:
+     * 
+     * <pre>
+     * relativizePath('c:\some\folder\to\file.txt', 'c:\some\folder');
+     * </pre>
+     * 
+     * Result: <code>to/file.txt</code>
+     * 
+     * @param string $path
+     * @param string $relativeTo
+     * @return string
+     */
     public static function relativizePath(string $path, string $relativeTo) : string
     {
         $path = self::normalizePath($path);
@@ -1324,17 +1324,17 @@ 
         return $relative;
     }
     
-   /**
-    * Checks that the target file exists, and throws an exception
-    * if it does not. 
-    * 
-    * @param string $path
-    * @param int|NULL $errorCode Optional custom error code
-    * @throws FileHelper_Exception
-    * @return string The real path to the file
-    * 
-    * @see FileHelper::ERROR_FILE_DOES_NOT_EXIST
-    */
+    /**
+     * Checks that the target file exists, and throws an exception
+     * if it does not. 
+     * 
+     * @param string $path
+     * @param int|NULL $errorCode Optional custom error code
+     * @throws FileHelper_Exception
+     * @return string The real path to the file
+     * 
+     * @see FileHelper::ERROR_FILE_DOES_NOT_EXIST
+     */
     public static function requireFileExists(string $path, ?int $errorCode=null) : string
     {
         $result = realpath($path);
@@ -1372,18 +1372,18 @@ 
         );
     }
     
-   /**
-    * Reads a specific line number from the target file and returns its
-    * contents, if the file has such a line. Does so with little memory
-    * usage, as the file is not read entirely into memory.
-    * 
-    * @param string $path
-    * @param int $lineNumber Note: 1-based; the first line is number 1.
-    * @return string|NULL Will return null if the requested line does not exist.
-    * @throws FileHelper_Exception
-    * 
-    * @see FileHelper::ERROR_FILE_DOES_NOT_EXIST
-    */
+    /**
+     * Reads a specific line number from the target file and returns its
+     * contents, if the file has such a line. Does so with little memory
+     * usage, as the file is not read entirely into memory.
+     * 
+     * @param string $path
+     * @param int $lineNumber Note: 1-based; the first line is number 1.
+     * @return string|NULL Will return null if the requested line does not exist.
+     * @throws FileHelper_Exception
+     * 
+     * @see FileHelper::ERROR_FILE_DOES_NOT_EXIST
+     */
     public static function getLineFromFile(string $path, int $lineNumber) : ?string
     {
         self::requireFileExists($path);
@@ -1399,19 +1399,19 @@ 
         $file->seek($targetLine);
         
         if($file->key() !== $targetLine) {
-             return null;
+                return null;
         }
         
         return $file->current(); 
     }
     
-   /**
-    * Retrieves the total amount of lines in the file, without 
-    * reading the whole file into memory.
-    * 
-    * @param string $path
-    * @return int
-    */
+    /**
+     * Retrieves the total amount of lines in the file, without 
+     * reading the whole file into memory.
+     * 
+     * @param string $path
+     * @return int
+     */
     public static function countFileLines(string $path) : int
     {
         self::requireFileExists($path);
@@ -1441,26 +1441,26 @@ 
         return $number+1;
     }
     
-   /**
-    * Parses the target file to detect any PHP classes contained
-    * within, and retrieve information on them. Does not use the 
-    * PHP reflection API.
-    * 
-    * @param string $filePath
-    * @return FileHelper_PHPClassInfo
-    */
+    /**
+     * Parses the target file to detect any PHP classes contained
+     * within, and retrieve information on them. Does not use the 
+     * PHP reflection API.
+     * 
+     * @param string $filePath
+     * @return FileHelper_PHPClassInfo
+     */
     public static function findPHPClasses(string $filePath) : FileHelper_PHPClassInfo
     {
         return new FileHelper_PHPClassInfo($filePath);
     }
     
-   /**
-    * Detects the end of line style used in the target file, if any.
-    * Can be used with large files, because it only reads part of it.
-    * 
-    * @param string $filePath The path to the file.
-    * @return NULL|ConvertHelper_EOL The end of line character information, or NULL if none is found.
-    */
+    /**
+     * Detects the end of line style used in the target file, if any.
+     * Can be used with large files, because it only reads part of it.
+     * 
+     * @param string $filePath The path to the file.
+     * @return NULL|ConvertHelper_EOL The end of line character information, or NULL if none is found.
+     */
     public static function detectEOLCharacter(string $filePath) : ?ConvertHelper_EOL
     {
         // 20 lines is enough to get a good picture of the newline style in the file.
@@ -1473,18 +1473,18 @@ 
         return ConvertHelper::detectEOLCharacter($string);
     }
     
-   /**
-    * Reads the specified amount of lines from the target file.
-    * Unicode BOM compatible: any byte order marker is stripped
-    * from the resulting lines.
-    * 
-    * @param string $filePath
-    * @param int $amount Set to 0 to read all lines.
-    * @return array
-    * 
-    * @see FileHelper::ERROR_CANNOT_OPEN_FILE_TO_READ_LINES
-    * @see FileHelper::ERROR_FILE_DOES_NOT_EXIST
-    */
+    /**
+     * Reads the specified amount of lines from the target file.
+     * Unicode BOM compatible: any byte order marker is stripped
+     * from the resulting lines.
+     * 
+     * @param string $filePath
+     * @param int $amount Set to 0 to read all lines.
+     * @return array
+     * 
+     * @see FileHelper::ERROR_CANNOT_OPEN_FILE_TO_READ_LINES
+     * @see FileHelper::ERROR_FILE_DOES_NOT_EXIST
+     */
     public static function readLines(string $filePath, int $amount=0) : array
     {
         self::requireFileExists($filePath);
@@ -1537,16 +1537,16 @@ 
         return $result;
     }
     
-   /**
-    * Reads all content from a file.
-    * 
-    * @param string $filePath
-    * @throws FileHelper_Exception
-    * @return string
-    * 
-    * @see FileHelper::ERROR_FILE_DOES_NOT_EXIST
-    * @see FileHelper::ERROR_CANNOT_READ_FILE_CONTENTS
-    */
+    /**
+     * Reads all content from a file.
+     * 
+     * @param string $filePath
+     * @throws FileHelper_Exception
+     * @return string
+     * 
+     * @see FileHelper::ERROR_FILE_DOES_NOT_EXIST
+     * @see FileHelper::ERROR_CANNOT_READ_FILE_CONTENTS
+     */
     public static function readContents(string $filePath) : string
     {
         self::requireFileExists($filePath);
@@ -1567,18 +1567,18 @@ 
         );
     }
 
-   /**
-    * Ensures that the target path exists on disk, and is a folder.
-    * 
-    * @param string $path
-    * @return string The real path, with normalized slashes.
-    * @throws FileHelper_Exception
-    * 
-    * @see FileHelper::normalizePath()
-    * 
-    * @see FileHelper::ERROR_FOLDER_DOES_NOT_EXIST
-    * @see FileHelper::ERROR_PATH_IS_NOT_A_FOLDER
-    */
+    /**
+     * Ensures that the target path exists on disk, and is a folder.
+     * 
+     * @param string $path
+     * @return string The real path, with normalized slashes.
+     * @throws FileHelper_Exception
+     * 
+     * @see FileHelper::normalizePath()
+     * 
+     * @see FileHelper::ERROR_FOLDER_DOES_NOT_EXIST
+     * @see FileHelper::ERROR_PATH_IS_NOT_A_FOLDER
+     */
     public static function requireFolderExists(string $path) : string
     {
         $actual = realpath($path);